CN206904258U - The dynamic double eccentric flange-type butterfly valves of snail - Google Patents
The dynamic double eccentric flange-type butterfly valves of snail Download PDFInfo
- Publication number
- CN206904258U CN206904258U CN201720560481.0U CN201720560481U CN206904258U CN 206904258 U CN206904258 U CN 206904258U CN 201720560481 U CN201720560481 U CN 201720560481U CN 206904258 U CN206904258 U CN 206904258U
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- China
- Prior art keywords
- butterfly plate
- butterfly
- snail
- double eccentric
- dynamic double
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Abstract
The utility model belongs to valve body apparatus field, more particularly to the dynamic double eccentric flange-type butterfly valves of snail, including flange valve pipe and eccentric setting in the butterfly plate in valve pipe, eccentric connection rotating shaft one end at the top of butterfly plate, the rotating shaft other end connect through the turbine in valve Guan Houyu transmission cases, turbine and worm engaging, and worm end stretches out transmission case and is connected with umbrella handwheel, several flow deflectors are from top to bottom provided with the plate face of the butterfly plate, flow deflector is horizontally disposed, and the stupefied place in side of flow deflector is in wedge type shape；The edge of butterfly plate is installed with O-ring seal.The utility model is simple in construction, by setting flow deflector to carry out water conservancy diversion to static liquid effectively when butterfly plate is opened, prevents liquid moment from flowing and being stopped by butterfly plate and produce vortex.
Description
Technical field
The utility model belongs to valve body apparatus field, more particularly to the dynamic double eccentric flange-type butterfly valves of snail.
Background technology
The butterfly plate of the dynamic double eccentric flange-type butterfly valves of snail is installed on the diametric(al) of pipeline, and collar plate shape butterfly plate revolves around axis
Turn, between the anglec of rotation is 0-90 °, when butterfly plate rotates to 90 °, valve is then shown in a fully open operation.The dynamic double eccentric flange-types of snail
Butterfly valve not only opens and closes rapid, operation Portable power saving, and due between butterfly plate and valve pipe using eccentric design, butterfly plate with valve pipe
Sealing ring between sliding friction it is smaller, sealing surface is wear-resistant, service life length, sealed reliable, easily adjustment.But prior art
In double eccentric flange-type butterfly valves there is also following drawback when in use：1) sealing ring is arranged at the valve pipe internal wall of pipe orifice of butterfly valve
On, sealing ring easily is caused to loosen and then from valve pipe internal wall of pipe orifice depart from by hydraulic shock；2) due to being moved when butterfly plate is opened
Make it is larger, liquid at butterfly plate by it is quiet to dynamic when easily produce vortex, can not only produce impact to valve pipe, nor butterfly plate is opened
The resistance being subject to when opening is also very big.
Utility model content
The purpose of this utility model is to provide a kind of dynamic double eccentric flange-type butterfly valves of snail, and the utility model is simple in construction, leads to
Cross and set flow deflector to carry out water conservancy diversion to static liquid effectively when butterfly plate is opened, prevent liquid moment from flowing and by butterfly
Plate stops and produces vortex.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows：
The dynamic double eccentric flange-type butterfly valves of snail, including flange valve pipe and eccentric setting are at the top of the butterfly plate in valve pipe, butterfly plate
Eccentric connection rotating shaft one end, the rotating shaft other end connect through the turbine in valve Guan Houyu transmission cases, turbine and worm engaging, and snail
Boom end stretches out transmission case and is connected with umbrella handwheel, and several flow deflectors, flow deflector are from top to bottom provided with the plate face of the butterfly plate
Horizontally disposed, the stupefied place in side of flow deflector is in wedge type shape；The edge of butterfly plate is installed with O-ring seal.
Preferably, flow deflector in the plate face of the butterfly plate both sides is contour to be correspondingly arranged.
Preferably, the butterfly plate edge is provided with T-shaped caulking groove, and the section of O-ring seal coordinates in T fonts and with caulking groove.
Preferably, butterfly plate edge thickness is gradually reduced and both sides are in domatic shape.
Preferably, the valve pipe internal wall of pipe orifice edge, which is provided with, radially extends and in domatic with the cooperation of butterfly plate edge.
Preferably, the O-ring seal is made up of silica gel.
The utility model is driven in Open valve by rotating umbrella handwheel worm screw turbine, and rotating shaft drives
Butterfly plate rotates.When butterfly plate rotates, gap location flowing of the liquid first between butterfly plate and valve pipe, while liquid is by flow deflector
Guide effect, paste and flowed along flow deflector so that liquid flowing is more steady, avoids the generation of vortex to greatest extent.Simultaneously
The stupefied place in side of flow deflector is in wedge surface shape, can reduce the resistance to liquid, improves the water conservancy diversion effect to liquid.
Butterfly plate edge thickness is gradually reduced and both sides are in domatic shape, can reduce resistance and liquid of the butterfly plate edge to liquid
Body facilitates liquid to be shunted from butterfly plate both sides, improves the mobility of liquid to the impact at butterfly plate edge.
Valve pipe internal wall of pipe orifice edge can effectively improve envelope provided with radially extending and being in domatic with the cooperation of butterfly plate edge
Stifled effect.
O-ring seal is fixedly arranged on butterfly plate by the utility model, can specifically use the modes such as moulding by casting, Er Qiehuan
The shape of shape sealing ring section and butterfly plate caulking groove is in T fonts, ensure that the connective stability of O-ring seal and butterfly plate.
The utility model compared with prior art, has the following advantages that：It is simple in construction, by setting flow deflector effective
Water conservancy diversion is carried out to static liquid when butterfly plate is opened, prevents liquid moment from flowing and being stopped by butterfly plate and produce vortex.
Brief description of the drawings
Fig. 1 is the structural representation that the dynamic double eccentric flange-type butterfly valves of snail are under opening in embodiment；
Fig. 2 is the structural representation of deflector in embodiment；
Fig. 3 is sealing ring and the cross section structure schematic diagram of butterfly plate junction in embodiment.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As Figure 1-3, the dynamic double eccentric flange-type butterfly valves of snail, including flange valve pipe 1 and eccentric setting are in valve pipe
Butterfly plate 2, the eccentric one end of connection rotating shaft 3 in the top of butterfly plate 2, the other end of rotating shaft 3 are connected after passing through valve pipe 1 with the turbine in transmission case 4,
Turbine and worm engaging, and worm end stretches out transmission case 4 and is connected with umbrella handwheel 5, by up in the both sides plate face of butterfly plate 2
Under it is contour be correspondingly provided with several flow deflectors 6, flow deflector 6 is horizontally disposed, and the stupefied place 7 in side of flow deflector 6 is in wedge type shape；Butterfly plate
2 edges are provided with T-shaped caulking groove, and the section of O-ring seal 9 coordinates in T fonts and with caulking groove；The edge thickness of butterfly plate 2 is gradually reduced
And both sides are in domatic shape, the internal wall of pipe orifice edge of valve pipe 1, which is provided with, to be radially extended and in domatic 8 coordinated with the edge of butterfly plate 2.It is described
O-ring seal 9 is made up of silica gel.
The utility model is driven in Open valve by rotating umbrella handwheel worm screw turbine, and rotating shaft drives
Butterfly plate rotates.When butterfly plate rotates, gap location flowing of the liquid first between butterfly plate and valve pipe, while liquid is by flow deflector
Guide effect, paste and flowed along flow deflector so that liquid flowing is more steady, avoids the generation of vortex to greatest extent.Simultaneously
The stupefied place in side of flow deflector is in wedge surface shape, can reduce the resistance to liquid, improves the water conservancy diversion effect to liquid.
Butterfly plate edge thickness is gradually reduced and both sides are in domatic shape, can reduce resistance and liquid of the butterfly plate edge to liquid
Body facilitates liquid to be shunted from butterfly plate both sides, improves the mobility of liquid to the impact at butterfly plate edge.
Valve pipe internal wall of pipe orifice edge can effectively improve envelope provided with radially extending and being in domatic with the cooperation of butterfly plate edge
Stifled effect.
O-ring seal is fixedly arranged on butterfly plate by the utility model, can specifically use the modes such as moulding by casting, Er Qiehuan
The shape of shape sealing ring section and butterfly plate caulking groove is in T fonts, ensure that the connective stability of O-ring seal and butterfly plate.
Claims (6)
1. the dynamic double eccentric flange-type butterfly valves of snail, including flange valve pipe and eccentric setting, in the butterfly plate in valve pipe, butterfly plate top is partially
Heart connection rotating shaft one end, the rotating shaft other end connect through the turbine in valve Guan Houyu transmission cases, turbine and worm engaging, and worm screw
End is stretched out transmission case and is connected with umbrella handwheel, it is characterised in that several water conservancy diversion are from top to bottom provided with the plate face of the butterfly plate
Piece, flow deflector is horizontally disposed, and the stupefied place in side of flow deflector is in wedge type shape；The edge of butterfly plate is installed with O-ring seal.
2. the dynamic double eccentric flange-type butterfly valves of snail as claimed in claim 1, it is characterised in that leading in the plate face of the butterfly plate both sides
Flow is contour to be correspondingly arranged.
3. the dynamic double eccentric flange-type butterfly valves of snail as claimed in claim 1, it is characterised in that the butterfly plate edge is provided with T-shaped
Caulking groove, the section of O-ring seal coordinate in T fonts and with caulking groove.
4. the dynamic double eccentric flange-type butterfly valves of snail as claimed in claim 1, it is characterised in that butterfly plate edge thickness gradually subtracts
Small and both sides are in domatic shape.
5. the dynamic double eccentric flange-type butterfly valves of snail as claimed in claim 1, it is characterised in that the valve pipe internal wall of pipe orifice edge
Provided with radially extend and in butterfly plate edge coordinate it is domatic.
6. the dynamic double eccentric flange-type butterfly valves of snail as claimed in claim 3, it is characterised in that the O-ring seal is by silica gel system
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720560481.0U CN206904258U (en) | 2017-05-18 | 2017-05-18 | The dynamic double eccentric flange-type butterfly valves of snail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720560481.0U CN206904258U (en) | 2017-05-18 | 2017-05-18 | The dynamic double eccentric flange-type butterfly valves of snail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206904258U true CN206904258U (en) | 2018-01-19 |
Family
ID=61288796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720560481.0U Active CN206904258U (en) | 2017-05-18 | 2017-05-18 | The dynamic double eccentric flange-type butterfly valves of snail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206904258U (en) |
-
2017
- 2017-05-18 CN CN201720560481.0U patent/CN206904258U/en active Active
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